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Method and system for metadata analysis and collection with privacy

  • US 10,439,996 B2
  • Filed: 02/11/2015
  • Issued: 10/08/2019
  • Est. Priority Date: 02/11/2014
  • Status: Active Grant
First Claim
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1. A method comprising:

  • generating and transmitting authorization keys by a trusted third party (TTP) system to a government agency (GA) system and a communication service provider (CSP) system;

    receiving index records from the CSP system,wherein the index records reference records of subscribers of the CSP system;

    ingesting and storing the index records received from the CSP system;

    receiving a target index request from the GA system;

    sending a metadata record request by the TTP system to the CSP system based on the target index request; and

    receiving metadata records at the TTP system from the CSP system and sending the metadata records to the GA system,wherein the metadata records are encrypted with encryption keys shared between the GA system and the CSP system, but not the TTP system such that the TTP system cannot decrypt the metadata records.

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